BR0200464A - Continuous adiabatic process for the preparation of nitrochlorobenzene - Google Patents

Continuous adiabatic process for the preparation of nitrochlorobenzene

Info

Publication number
BR0200464A
BR0200464A BR0200464-0A BR0200464A BR0200464A BR 0200464 A BR0200464 A BR 0200464A BR 0200464 A BR0200464 A BR 0200464A BR 0200464 A BR0200464 A BR 0200464A
Authority
BR
Brazil
Prior art keywords
preparation
nitrochlorobenzene
adiabatic process
continuous adiabatic
continuous
Prior art date
Application number
BR0200464-0A
Other languages
Portuguese (pt)
Inventor
Ralph Demuth
Bernd-Michael Koenig
Thomas Linn
Hans-Joachim Raatz
Hans-Martin Weber
Eberhard Zirngiebl
Ricarda Leiberich
Original Assignee
Bayer Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of BR0200464A publication Critical patent/BR0200464A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups

Abstract

"PROCESSO ADIABáTICO CONTìNUO PARA A PREPARAçãO DE NITROCLOROBENZENO". A presente invenção refere-se a um processo adiabático para a preparação de nitrociorobenzeno, em que o ácido sulfúrico residual obtido na execução do processo é concentrado e reconduzido na reação de nitração."CONTINUOUS ADIABATIC PROCESS FOR THE PREPARATION OF NITROCHLOROBENZENE". The present invention relates to an adiabatic process for the preparation of nitrociorobenzene, in which the residual sulfuric acid obtained in the execution of the process is concentrated and returned to the nitration reaction.

BR0200464-0A 2001-02-23 2002-02-21 Continuous adiabatic process for the preparation of nitrochlorobenzene BR0200464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10108979A DE10108979C1 (en) 2001-02-23 2001-02-23 Continuous production of nitrochlorobenzene, used as intermediates for dye, pharmaceutical and pesticide production, uses specified adiabatic conditions and acid composition in nitration of chlorobenzene

Publications (1)

Publication Number Publication Date
BR0200464A true BR0200464A (en) 2002-10-29

Family

ID=7675382

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0200464-0A BR0200464A (en) 2001-02-23 2002-02-21 Continuous adiabatic process for the preparation of nitrochlorobenzene

Country Status (13)

Country Link
US (1) US6586645B2 (en)
EP (1) EP1234814B1 (en)
JP (1) JP4257891B2 (en)
KR (1) KR100777517B1 (en)
CN (1) CN1219746C (en)
AT (1) ATE265416T1 (en)
BR (1) BR0200464A (en)
CA (1) CA2372767A1 (en)
CZ (1) CZ299615B6 (en)
DE (2) DE10108979C1 (en)
HK (1) HK1049828B (en)
PL (1) PL205525B1 (en)
RU (1) RU2301221C2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10205855A1 (en) 2002-02-13 2003-08-21 Bayer Ag Continuous production of nitrochlorobenzene, useful e.g. in pharmaceuticals or dyestuffs production, comprises nitration of chlorobenzene with a mixture of sulfuric, phosphoric and nitric acids and water, with recycling of acids
CN100368377C (en) * 2006-06-19 2008-02-13 常州市佳森化工有限公司 Tech. of producing ortho nitro methyl-phenoxide para nitro methyl-phenoxide and meta nitro chlorobenzene from chlorobenzene
DE102008048713A1 (en) * 2008-09-24 2010-03-25 Bayer Materialscience Ag Process for the continuous production of nitrobenzene
CN101602561B (en) * 2009-07-07 2011-08-17 扬州大学 Process for comprehensive use and treatment of wastewater from chlorobenzene adiabatic nitration material separation
CN101607910B (en) * 2009-07-07 2012-10-17 扬州大学 Removal technology of nitrogen oxides generated in chlorobenzene thermal insulation nitration
CN102070457B (en) * 2011-02-15 2013-07-17 连云港地浦化工有限公司 Method for continuously preparing dinitrochlorobenzene
WO2012110839A1 (en) 2011-02-17 2012-08-23 Noram International Limited Removal of non-aromatic impurities from a nitration process
CN102093223A (en) * 2011-03-03 2011-06-15 安徽省怀远县虹桥化工有限公司 Improved production process of 2,4-dinitrochlorbenzene
KR101906168B1 (en) * 2012-09-06 2018-10-10 코오롱인더스트리 주식회사 Method of manufacturing para-phenylenediamine
CN104478731B (en) * 2014-12-31 2016-04-13 浙江永太科技股份有限公司 One utilizes micro passage reaction to synthesize the method for the chloro-3-fluoronitrobenzene of 2,4-bis-
DE102018217955B4 (en) * 2018-10-19 2020-06-04 Plinke Gmbh Process for working up mixed acid and waste water from the nitration of aromatics and device for carrying out the process
CN113045427A (en) * 2021-03-19 2021-06-29 宁夏华御化工有限公司 Nitrochlorobenzene preparation method and system capable of reducing nitrate content in wastewater

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19808748A1 (en) * 1997-11-03 1999-05-06 Bayer Ag Process for the preparation of aromatic nitro compounds
US4021498A (en) * 1975-12-09 1977-05-03 American Cyanamid Company Adiabatic process for nitration of nitratable aromatic compounds
US4453027A (en) * 1982-12-10 1984-06-05 Monsanto Company Adiabatic process for the nitration of halobenzenes
DE3409717C2 (en) * 1984-03-16 1994-03-31 Bayer Ag Process for the preparation of nitrobenzene
DE4411064A1 (en) * 1994-03-30 1995-10-05 Bayer Ag Process for the adiabatic production of mononitrohalobenzenes
US5763687A (en) 1995-12-15 1998-06-09 Mitsui Chemicals, Inc. Preparation process for aromatic mononitro compounds
HUP0100200A3 (en) * 1997-11-03 2002-03-28 Bayer Ag Method for producing aromatic nitro compounds

Also Published As

Publication number Publication date
CN1371902A (en) 2002-10-02
EP1234814A1 (en) 2002-08-28
CZ2002648A3 (en) 2002-10-16
CN1219746C (en) 2005-09-21
JP2002255904A (en) 2002-09-11
PL205525B1 (en) 2010-04-30
ATE265416T1 (en) 2004-05-15
EP1234814B1 (en) 2004-04-28
DE50200376D1 (en) 2004-06-03
HK1049828B (en) 2006-05-12
US6586645B2 (en) 2003-07-01
HK1049828A1 (en) 2003-05-30
KR20020069122A (en) 2002-08-29
RU2301221C2 (en) 2007-06-20
CZ299615B6 (en) 2008-09-24
US20020161269A1 (en) 2002-10-31
KR100777517B1 (en) 2007-11-20
CA2372767A1 (en) 2002-08-23
DE10108979C1 (en) 2002-05-08
JP4257891B2 (en) 2009-04-22

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: LANXESS DEUTSCHLAND GMBH (DE)

Free format text: TRANSFERIDO DE: BAYER AKTIENGESELLSCHAFT

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.